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本实验用透射电镜(TEM Philips 4300)和能量色散光谱分析(Edax 9100 X线微区分析仪),分析了4名曾在同一工厂从事石棉水泥管道和石棉板生产、合并有石棉肺的膀胱癌患者癌瘤组织标本中石棉纤维的数量和种类(温石棉及透闪石)。该厂有雇员160人,应用石棉水泥材料中含有15%～20%的石棉纤维。其中温石棉为60%～80%,青石棉为20%,铁石棉为10～20%。这4名工人从事石棉作业的工龄为13～35年,于膀胱癌术前5～12年已诊断为石棉肺。测定结果表明,癌组织中石棉纤维的含量
In this experiment, we analyzed TEM 4,300 and energy dispersive spectroscopy (Edax 9100 X-ray microanalyzer) to investigate the effect of asbestos-containing cement pipeline and asbestos production in the same factory, Number and type of asbestos fibers (chrysotile and tremolite) in the patient’s cancer tissue specimens. The plant employs 160 people, the application of asbestos cement materials contain 15% to 20% asbestos fibers. Including chrysotile as 60% ~ 80%, 20% asbestos, asbestos 10 ~ 20%. The four workers engaged in asbestos work for 13 to 35 years of age, 5 to 12 years prior to bladder cancer has been diagnosed as asbestosis. The results show that the content of asbestos fibers in cancer tissue